The circuit which Nasht was aiming to break, is the one providing voltage to an increasingly toxic debate in the media and in the public about the root causes and consequences of human-caused climate change.

Before the show had even gone to air, the program was causing controversy with commentators – myself and others including Clive Hamilton, Stephan Lewandowsky and Michael Ashley – pointing out its format gave the false impression of there being a legitimate scientific debate about fossil fuel burning causing climate change.

In brief, the show took a climate skeptic, former Liberal senator Nick Minchin, and a climate change campaigner, Anna Rose, and flew them around the world. Each could introduce the other to anybody they liked, in an attempt to change the other’s mind.

“We set out to see who Nick relies on and who Anna relies on. That’s a valid approach,” Nasht said.

As I had already written, the program gave an airing and, in turn, some

credibility, to pseudo-scientists, outlying views and consistently wrong bloggers. My argument wasn’t that they didn’t have the right to an opinion, but that the show would legitimize their debunked views.

Nasht, whose company Smith&Nasht partners him with entrepreneur Dick Smith, contacted me asking if I’d be happy to hear and communicate his side of the story. I wanted to know why he thought the format was a good idea, when I clearly didn’t. So in the interests of fairness, here we are.

“The truth is that we need new ways of framing this because we don’t have any time,” he told me. “We have to face reality that standing on a high horse of scientific purity is not working. The 700,000 or so people that watched the show to revisit the climate change issue were forced to consider their own point of view.”

Nasht said the show was as much about examining the social science – the reasons why the debate has become publicly polarized – as it was about examining the climate science.

“It was a thought-through strategy and we took a lot of time to think about what we were doing,” he said.

The concept of the show is simple. Get a climate sceptic and a climate advocate together and let them take each other around the world to meet people in an attempt to change each other’s mind.

Nick Minchin laid out his own position during an interview with the ABC’s Four Corners program, back in 2009. Basically, it boiled to “lefties” exploiting people’s innate fears about climate change “to achieve their political ends”.

I should admit I’ve known about the program for many months, as I was approached to act as an advisor in the planning stages. Nothing materialised. I also spoke many months ago to Anna Rose about the show.

In both instances, I said that in my view the show’s format was flawed in that it would put non-peer-reviewed, pseudo science conducted by largely unqualified non-experts alongside decades of genuine peer reviewed scientific research. It might make for engaging telly, but it creates a false sense of balance.

If I were a climate sceptic activist or a fossil fuel lobbyist designing a format for a TV show, this show is what I’d probably come up with.